T. Tomono et Ls. Pu, RELATIONSHIP AMONG MOLECULAR-STRUCTURES, MOLECULAR HYPERPOLARIZABILITIES AND CRYSTAL-STRUCTURES OF PHENYLCYCLOBUTENEDIONES, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 294, 1997, pp. 255-258
The relationship among molecular structures, hyperpolarizabilities and
crystal structures of cyclobutenediones were discussed to predict opt
ical non-linearity in the crystals according to the two level model.